EP2820123B1 - Procédé pour guider la dérivation de cellules endothéliales provenant de cellules souches pluripotentes humaines à l'aide d'une différenciation bidimensionnelle sans cellules nourricières - Google Patents
Procédé pour guider la dérivation de cellules endothéliales provenant de cellules souches pluripotentes humaines à l'aide d'une différenciation bidimensionnelle sans cellules nourricières Download PDFInfo
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- C12N5/06—Animal cells or tissues; Human cells or tissues
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Definitions
- the present invention is in the area of pluripotent stem cells and more particularly deals with a method to differentiate endothelial cells from stem cells.
- Recreating functional vasculature is a pivotal step in the development of novel therapies in the field of regenerative medicine by providing innovative treatment options for patients suffering from vascular disorders through generating functional and transplantable tissues that have been engineered in vitro.
- the vascularization of tissue constructs remains a major challenge in regenerative medicine. Without its own blood supply, an engineered construct relies mainly on diffusional oxygen supply, which can only support a thin layer of viable tissue. Therefore, vascularization of a tissue construct is crucial for its successful implantation, survival, and integration with the host tissue.
- the formation of mature and functional vascular networks requires interaction between endothelial cells (ECs) and vascular smooth muscle cells (v-SMCs).
- ECs line the vessel wall and organize into an immature vasculature.
- ECs secrete platelet-derived-growth-factors (PDGF) to induce the differentiation of specialized mesenchymal stem cells (MSCs) into pericytes in capillaries or SMCs in larger vessels.
- PDGF platelet-derived-growth-factors
- MSCs mesenchymal stem cells
- TGF- ⁇ 1 transforming growth factor-beta 1
- ECM extracellular matrix
- ECs comprise the inner lining of blood vessels and must work dynamically with blood flowing within and with SMCs, which surround and provide support to the endothelial lining of the vessel.
- SMCs which surround and provide support to the endothelial lining of the vessel.
- hPSCs human pluripotent stem cells
- hESCs human embryonic stem cells
- hiPSCs human induced PSCs
- hESCs and hiPSCs have the ability to differentiate into ECs (1, 2).
- Many methods to induce vascular differentiation have relied on an embryoid body (EB) intermediate, which entails spontaneous differentiation to an amalgamated cell mass in suspension and subsequent isolation of cells from the EB based on specific early endothelial markers (3, 4).
- EB embryoid body
- Other methods incorporate of inducing vascular differentiation include co-culture with mouse stromal cells, (5, 6) which is not conducive to clinical translation.
- the current invention solves these shortcomings by deriving a homogenous population of ECs from hPSCs in a controllable and clinically relevant manner.
- the present inventors describe a step-wise protocol for differentiating mammalian, including human, pluripotent stem cells (PSCs) into ECs in vitro.
- the PSCs can be derived from any suitable source.
- they can be embryonic stem cells (ESCs) or induced pluripotent stem cells (abbreviated iPS cells or iPSCs).
- ESCs embryonic stem cells
- iPS cells induced pluripotent stem cells
- the method which is simple, efficient and reliable, allows for the efficient derivation of concentrated, purified, ECs.
- the derived ECs highly express specific endothelial cell markers.
- Extracellular matrix (Matrigel) the ECs mature to form linear and tubular structures. When transplanted into mammals these structures mature into actual vessels which can serve as a ready source for therapeutic vascular tissue engineering.
- Pluripotent cells refers to stem cells that have the potential to differentiate into any of the three germ layers: endoderm (interior stomach lining, gastrointestinal tract, the lungs), mesoderm (muscle, bone, blood, urogenital), or ectoderm (epidermal tissues and nervous system). Pluripotent stem cells can give rise to any fetal or adult cell type.
- iPS cells are a type of pluripotent stem cell that is artificially derived from a non-pluripotent cell, such as an adult somatic cell, by forced expression of certain genes.
- Methods for generating iPS cells are conventional and well-known to those of skill in the art.
- Embryonic stem cells are described as "undifferentiated” when a substantial portion of stem cells and their derivatives in the population display morphological characteristics of undifferentiated cells, clearly distinguishing them from differentiated cells of embryonic or adult origin.
- Undifferentiated ES cells are easily recognized by those skilled in the art, and typically appear in a microscopic view as cells with high nuclear/cytoplasm ratios and prominent nucleoli.
- undifferentiated cells can be distinguished from differentiated cells by the absence of lineage specific markers such as vascular endothelial growth factor receptor 2 (VEGFR2), vascular endothelial cadherin (VE-cad) or platelet-endothelial cell adhesion molecule-1 (PECAM-1).
- VEGFR2 vascular endothelial growth factor receptor 2
- VE-cad vascular endothelial cadherin
- PECAM-1 platelet-endothelial cell adhesion molecule-1
- hESCs are cultured with mouse embryonic fibroblasts (
- iPSCs Much of the discussion in the present application is directed to iPSCs. However, other forms of PSCs, such as ESCs, are included.
- PSCs such as ESCs.
- ESCs other forms of PSCs, such as ESCs.
- individual undifferentiated ES cells are cultured in a manner suitable for inducing differentiation into vasculogenic progenitor cells.
- the PSCs Before being plated and cultured, the PSCs, which often have been grown on a feeder layer, are treated with a suitable reagent (e.g., digested with trypsin, such as TrypLE, or treated with EDTA) to detach them from the culture plate, and are treated further to generate a single-cell suspension of cells that are smaller than about 50 ⁇ m (e.g., about 40 ⁇ m or smaller).
- the sizing step not only sorts the cells into cells of a desired size, but also separates them from undesirable, larger cells, such as feeder layer cells (e.g., MEFs) or EPC that may be present in the culture. Sizing methods such as filtration can also help to break up cells that have adhered to one another, e.g., in ESC colonies.
- Differentiation of individual undifferentiated PSCs can be affected by culturing such cells on plates coated with an adhesive substrate such as type IV collagen, laminin or gelatin to prevent aggregation of the ES cells; seeding the cells at a low plating density (at a seeding concentration of about 5 x 10 4 cells/ cm 2 - about 1 x 10 5 cells/ cm 2 , for example about 5 x 10 4 cells/cm 2 - about 7 x 10 4 cells/cm 2 , or about 5 x 10 4 cells/cm 2 ); and providing differentiation medium that contains no growth factors.
- individual undifferentiated ES cells are grown on type IV collagen-coated plates (available from, for example, Cell Cultureware, BD-Falcon, Boston, Mass.).
- hPSCs were cultured at a concentration of 1.25x10 4 per cm 2 on collagen IV plates for 12 days.
- the cells were treated with VEGF for the entire time.
- the cells were supplemented with 10% serum and were not treated with VEGF until day 6. See Fig. 1 for a comparison of the protocols.
- hPSCs were cultured on collagen IV plates in media supplemented with 10% serum. After 6 days in culture, cells were strained and re-cultured in media supplemented with 50 ng/ml vascular endothelial growth factor (VEGF). Cells which were differentiated via direct means were cultured in the VEGF-supplemented media for all 12 days. EC markers were examined via immunofluorescence microscopy and flow cytometry.
- VEGF vascular endothelial growth factor
- MR31 cells differentiated via the sequential scheme yielded a greater percentage of vascular endothelial cadherin positive (VEcad+) cells ( ⁇ 5%) compared to the direct method ( ⁇ 2%).
- vWF von Willebrand factor
- culture on Matrigel revealed that cells derived via the sequential method form more homogeneous tube-like branching structures, whereas the direct differentiation method primarily yielded cells that cluster together. Similar results were obtained when the comparative analyses were performed on differentiating H9 cells. Collectively, these results indicate a sequential differentiation scheme, compared to a direct one, is more conducive to endothelial differentiation.
- derived ECs In vivo functionality is crucial to the success of derived ECs toward tissue engineering purposes. To ensure our derived ECs were able to survive implantation, form vascular networks, integrate with the host vasculature, and establish blood flow, the cells were encapsulated in Matrigel and subcutaneously implanted in nude mice. Derived ECs were labeled with PKH-26 (11) for ease of visualization in explanted tissue. To visualize angiogenesis in the implants prior to sample removal, mice were injected intravenously with anti-mouse FITC-lectin to enable visualization of mouse blood vessels within red-labeled (PKH) human vasculature using fluorescent microscopy. After 1 week, implants were harvested and imaged via confocal microscopy. Fig.
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Claims (12)
- Une méthode pour la différenciation de cellules souches pluripotentes (CSP) de mammifères en cellules endothéliales (CE) in vitro, comprenant les étapes de :mise en culture sur plaque d'une suspension de cellules uniques de CSP à une densité d'ensemencement de 1,25 x 104 cellules/cm2 à 1 x 105 cellules/cm2 sur un substrat adhésif ;culture des cellules en la présence de VEGF pendant 1 à 12 jours, où le VEGF variait de 1 à 50 ng/ml ; etrécolte des cellules cultivées moyennant quoi les CE sont produites.
- La méthode de la revendication 1, où le substrat adhésif est du collagène de type IV, et où la méthode comprend en outre la culture des cellules en l'absence de VEGF pendant 1 à 6 jours avant l'étape de culture des cellules en la présence de VEGF.
- La méthode pour la différentiation de CSP de la revendication 1, où le substrat adhésif est du collagène de type IV.
- La méthode pour la différentiation de CSP de la revendication 1 comprenant en outre une étape de culture en l'absence de VEGF pendant 1 à 6 jours avant l'étape de culture en la présence de VEGF.
- La méthode pour la différentiation de CSP de la revendication 2 ou de la revendication 4, où les milieux utilisés pour la culture sont complémentés avec du sérum.
- La méthode pour la différentiation de CSP de la revendication 5, où les milieux sont complémentés avec 10 % de sérum.
- La méthode pour la différentiation de CSP de la revendication 2 ou de la revendication 4, où l'étape de culture en la présence de VEGF inclut aussi la culture en la présence d'un inhibiteur du facteur de croissance transformant bêta (TGF-β).
- La méthode pour la différentiation de CSP de la revendication 7, où l'inhibiteur du TGF-β est SB431542.
- La méthode pour la différentiation de CSP de la revendication 4, où les cellules sont récoltées de la culture en l'absence de VEGF puis cultivées en la présence de VEGF.
- La méthode pour la différentiation de CSP de la revendication 2, où les cellules sont récoltées de la culture sans VEGF puis cultivées en la présence de VEGF.
- La méthode de la revendication 2 ou de la revendication 4, où la suspension de cellules uniques bidimensionnelle de CSP consiste en des CSP d'une taille inférieure à 50 µm.
- La méthode de la revendication 11, où les CSP d'une taille inférieure à 50 µm sont générées par une méthode comprenant une étape de filtration.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201261604884P | 2012-02-29 | 2012-02-29 | |
PCT/US2013/028341 WO2013130820A1 (fr) | 2012-02-29 | 2013-02-28 | Procédé pour guider la dérivation de cellules endothéliales provenant de cellules souches pluripotentes humaines à l'aide d'une différenciation bidimensionnelle sans cellules nourricières |
Publications (3)
Publication Number | Publication Date |
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EP2820123A1 EP2820123A1 (fr) | 2015-01-07 |
EP2820123A4 EP2820123A4 (fr) | 2015-08-19 |
EP2820123B1 true EP2820123B1 (fr) | 2017-10-11 |
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EP13754938.2A Active EP2820123B1 (fr) | 2012-02-29 | 2013-02-28 | Procédé pour guider la dérivation de cellules endothéliales provenant de cellules souches pluripotentes humaines à l'aide d'une différenciation bidimensionnelle sans cellules nourricières |
Country Status (6)
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US (1) | US20150017724A1 (fr) |
EP (1) | EP2820123B1 (fr) |
AU (1) | AU2013225946B2 (fr) |
CA (1) | CA2865497A1 (fr) |
IL (1) | IL234367B (fr) |
WO (1) | WO2013130820A1 (fr) |
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US20160168538A1 (en) * | 2014-12-15 | 2016-06-16 | The Board Of Trustees Of The University Of Illinois | Flk1+ and VE-Cadherin+ Endothelial Cells Derived from iPS or ES Cells, and Methods of Preparing and Using the Same |
WO2017014165A1 (fr) * | 2015-07-17 | 2017-01-26 | 国立大学法人京都大学 | Procédé d'induction de cellules endothéliales vasculaires |
JP6646311B2 (ja) * | 2015-07-17 | 2020-02-14 | 国立大学法人京都大学 | 多能性幹細胞から中胚葉前駆細胞および血液血管前駆細胞への分化誘導法 |
CN118202037A (zh) * | 2021-10-29 | 2024-06-14 | 凸版控股株式会社 | 组织体的制造方法和来自人的脂肪来源干细胞向血管内皮细胞的分化促进方法 |
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EP1421182A4 (fr) * | 2001-07-24 | 2005-03-23 | Es Cell Int Pte Ltd | Methodes destinees a induire une differenciation de cellules souches |
RU2359030C1 (ru) * | 2008-03-19 | 2009-06-20 | Общество С Ограниченной Ответственностью "Лаборатория Клеточных Технологий" | Способ получения эндотелиальных клеток из эмбриональных стволовых клеток человека (варианты) |
US20110305672A1 (en) * | 2008-07-25 | 2011-12-15 | University Of Georgia Research Foundation, Inc. | COMPOSITIONS FOR MESODERM DERIVED ISL1+ MULTIPOTENT CELLS (IMPs), EPICARDIAL PROGENITOR CELLS (EPCs) AND MULTIPOTENT CD56C CELLS (C56Cs) AND METHODS OF PRODUCING AND USING SAME |
US8557580B2 (en) * | 2009-02-20 | 2013-10-15 | Cellular Dynamics International, Inc. | Methods and compositions for the differentiation of stem cells |
US8372642B2 (en) * | 2009-02-27 | 2013-02-12 | Cellular Dynamics International, Inc. | Differentiation of pluripotent cells |
US20120301443A1 (en) * | 2009-12-29 | 2012-11-29 | Cornell University | Methods for developing endothelial cells from pluripotent cells and endothelial cells derived |
EP2539437B1 (fr) * | 2010-02-25 | 2017-08-02 | The Johns Hopkins University | Cellules du type muscle lisse (smlc) dérivées de cellules souches pluripotentes humaines |
US9902940B2 (en) * | 2010-06-17 | 2018-02-27 | Wisconsin Alumni Research Foundation | Human blood-brain barrier endothelial cells derived from pluripotent stem cells and blood-brain barrier model thereof |
US8785192B2 (en) * | 2010-07-07 | 2014-07-22 | Cellular Dynamics International, Inc. | Endothelial cell production by programming |
-
2013
- 2013-02-28 AU AU2013225946A patent/AU2013225946B2/en active Active
- 2013-02-28 EP EP13754938.2A patent/EP2820123B1/fr active Active
- 2013-02-28 US US14/380,110 patent/US20150017724A1/en not_active Abandoned
- 2013-02-28 CA CA2865497A patent/CA2865497A1/fr not_active Abandoned
- 2013-02-28 WO PCT/US2013/028341 patent/WO2013130820A1/fr active Application Filing
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Also Published As
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CA2865497A1 (fr) | 2013-09-06 |
WO2013130820A1 (fr) | 2013-09-06 |
US20150017724A1 (en) | 2015-01-15 |
EP2820123A1 (fr) | 2015-01-07 |
IL234367B (en) | 2019-10-31 |
EP2820123A4 (fr) | 2015-08-19 |
AU2013225946B2 (en) | 2018-07-12 |
AU2013225946A1 (en) | 2014-09-18 |
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